Home / 155,999.96-234,039-89,515.16

Finding the Fourth Proportional to 155,999.96, 234,039 and 89,515.16

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Solution

The fourth proportional to 155,999.96, 234,039 and 89,515.16 is: 134,295.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,999.96 : 234,039 = 89,515.16 : x
  2. Step 2: Convert to fraction form
    155,999.96/234,039 = 89,515.16/x
  3. Step 3: Cross multiply
    155,999.96x = 234,039 × 89,515.16
  4. Step 4: Simplify right side
    155,999.96x = 20,950,038,531.24
  5. Step 5: Solve for x
    x = 20,950,038,531.24/155,999.96
  6. Step 6: Final answer
    x = 134,295.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.